Voir la notice de l'article provenant de la source Math-Net.Ru
@article{KVANT_2017_4_a13, author = {M. Yu. Panov}, title = {{\CYRZ}{\cyra}{\cyrd}{\cyra}{\cyrch}{\cyra} {\cyrs} {\cyrk}{\cyrr}{\cyru}{\cyrzh}{\cyrk}{\cyra}, {\cyri}{\cyrl}{\cyri} {{\CYRE}{\cyrshch}{\cyre}} {\cyrr}{\cyra}{\cyrz} {\cyro} {\cyrz}{\cyra}{\cyrd}{\cyra}{\cyrch}{\cyre} {{\CYRM}2447}}, journal = {Kvant}, pages = {24--26}, publisher = {mathdoc}, number = {4}, year = {2017}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/KVANT_2017_4_a13/} }
M. Yu. Panov. Задача с кружка, или Еще раз о задаче М2447. Kvant, no. 4 (2017), pp. 24-26. http://geodesic.mathdoc.fr/item/KVANT_2017_4_a13/